Capturing Setup for 24PA advanced? at DVinfo.net

Stephen David Smith · June 22nd, 2008, 10:20 PM

I shot some DV footage in 24PA on the HD 110U. In my easy setup I chose all rates and 24PA. In my sequence setting I have the codec at proress 422. I am getting capture gaps when I capture. Does anyone know a way to fix this? Is it okay if I use proress 422 in my sequence settings? Or do I need to use something else?

Matt Ryan · June 23rd, 2008, 12:15 AM

adjust the capture setting as close to a 0 second pre and post roll so that all the frames are captured and not dropped. You can also bypass the 422 compression and just select hdv 720 24p capture from the capture preset settings.

Tim Dashwood · June 23rd, 2008, 08:43 AM

Quote:

Originally Posted by Stephen Smith

I shot some DV footage in 24PA on the HD 110U. In my easy setup I chose all rates and 24PA. In my sequence setting I have the codec at proress 422. I am getting capture gaps when I capture. Does anyone know a way to fix this? Is it okay if I use proress 422 in my sequence settings? Or do I need to use something else?

Are your gaps just at start/stop points in your tape? It sounds like you weren't using REGEN TC when you shot. You should be able to capture over start/stop breaks if REGEN TC is used.

Quote:

Originally Posted by Matt Ryan

You can also bypass the 422 compression and just select hdv 720 24p capture from the capture preset settings.

Stephen shot DV mode so "NTSC 24P Advanced Pulldown Removal" should work as a capture preset.

Stephen David Smith · June 23rd, 2008, 09:06 AM

The gaps are not from the start and stop. It happens right in the middle of my dialog section. I have always shot in 24p mode and never had this issue. To be honest I didn't really do my homework on 24PA... I had heard it dod something with the pulldown that made it easier for final cut to conform the 24 frames to the 30fps time base. So I thought I was going to make it easier for fcp... Can someone explain the whole 24pa thing to me?

Jack Walker · June 23rd, 2008, 09:45 AM

Quote:

Originally Posted by Stephen Smith

Can someone explain the whole 24pa thing to me?

It is explained in section 2.2 in this Wikipedia article:
http://en.wikipedia.org/wiki/24p#Advanced_pulldown

Tim Dashwood · June 23rd, 2008, 10:50 AM

Quote:

Originally Posted by Stephen Smith

The gaps are not from the start and stop. It happens right in the middle of my dialog section. I have always shot in 24p mode and never had this issue. To be honest I didn't really do my homework on 24PA... I had heard it dod something with the pulldown that made it easier for final cut to conform the 24 frames to the 30fps time base. So I thought I was going to make it easier for fcp... Can someone explain the whole 24pa thing to me?

Sounds like a dropout is screwing up the pulldown. You should try capturing as regular old NTSC 60i and then use the "Remove Advanced Pulldown" function from the Tools menu of FCP after you've captured. This will modify the quicktime files without recompression and leave you with 24fps clips.

Steve Oakley · June 23rd, 2008, 11:05 AM

24PA shooting on the JVC just doesn't work right. there are small errors in the data stream that causes FCP to mess up. do like TIm says & capture at 60i, then remove once its in. double work I know, but it will work. 24PA capture is in some respects more flaky then HDV capture in FCP. please complain here

http://www.apple.com/feedback/finalcutpro.html

that they need to fix capture and release a patch NOW, not a year from now. its one of the reasons I'm switching over to Prem Pro, it captures HDV perfectly. in fact it will capture over the drop outs that kill FCP and you can see them. the deck & camera have very good drop out compensation so you won't see it visually unless its a really bad one.

June 22nd, 2008, 10:20 PM	#1
Stephen David Smith Regular Crew Join Date: Oct 2005 Location: Flint/Davison MI Posts: 37	Capturing Setup for 24PA advanced? I shot some DV footage in 24PA on the HD 110U. In my easy setup I chose all rates and 24PA. In my sequence setting I have the codec at proress 422. I am getting capture gaps when I capture. Does anyone know a way to fix this? Is it okay if I use proress 422 in my sequence settings? Or do I need to use something else? __________________ Stephen Smith

June 23rd, 2008, 09:06 AM	#4
Stephen David Smith Regular Crew Join Date: Oct 2005 Location: Flint/Davison MI Posts: 37	The gaps are not from the start and stop. It happens right in the middle of my dialog section. I have always shot in 24p mode and never had this issue. To be honest I didn't really do my homework on 24PA... I had heard it dod something with the pulldown that made it easier for final cut to conform the 24 frames to the 30fps time base. So I thought I was going to make it easier for fcp... Can someone explain the whole 24pa thing to me? __________________ Stephen Smith

June 23rd, 2008, 12:15 AM	#2
Matt Ryan Regular Crew Join Date: Feb 2008 Location: Hollywood, CA. Posts: 110	adjust the capture setting as close to a 0 second pre and post roll so that all the frames are captured and not dropped. You can also bypass the 422 compression and just select hdv 720 24p capture from the capture preset settings.

June 23rd, 2008, 11:05 AM	#7
Steve Oakley Trustee Join Date: Apr 2006 Location: United States Posts: 1,158	24PA shooting on the JVC just doesn't work right. there are small errors in the data stream that causes FCP to mess up. do like TIm says & capture at 60i, then remove once its in. double work I know, but it will work. 24PA capture is in some respects more flaky then HDV capture in FCP. please complain here http://www.apple.com/feedback/finalcutpro.html that they need to fix capture and release a patch NOW, not a year from now. its one of the reasons I'm switching over to Prem Pro, it captures HDV perfectly. in fact it will capture over the drop outs that kill FCP and you can see them. the deck & camera have very good drop out compensation so you won't see it visually unless its a really bad one.